4. B - Operations, Transporting
  5. 01
  6. D

Robert F. Mcgivern

B - Operations – Transporting – 01 – D

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Inventor

Country: United States Of America

Sewage settling tank

B - Operations – Transporting – 01 – D
Patent

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Aerobic digestion system for use in sewage treatment

C - Chemistry – Metallurgy – 02 – F
Patent

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Filter bottoms

B - Operations – Transporting – 01 – D
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Liquid rheostat

H - Electricity – 01 – C
Patent

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Profile ID: LFCA-PAI-P-658002

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